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化学学报
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化学学报 ›› 1992, Vol. 50 ›› Issue (2): 193-199. 上一篇    下一篇

研究论文

金属-金属键形成反应的研究: [η^5-RO~2CC~5H~4(CO)~3M]~2Hg(R=Me,Et;M=Cr,Mo,W)的合成及鉴定

宋礼成;董庆;胡青眉   

  1. 南开大学化学系
  • 发布日期:1992-02-15

Study on metal-metal bond formation reactions--Synthesis and characterization of [η^5-RO~2CC~5H~4(CO)~3M]~2Hg(R=Me,Et; M=Cr,Mo,W)

SONG LICHENG;DONG QING;HU QINGMEI   

  • Published:1992-02-15

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η^5-RO~2CC~5H~4(CO)~3MNa与R^1HgCl,R^1=Me, Et, Ph)可发生一种非预期的金属键形成反应, 生成[η^5-RO~2CC~5H~4(CO)~3M]~2Hg(R=Me,Et;M=Cr,Mo,W)。对反应中间物η^5-EtO~2CC~5H~4(CO)~3MoHgPh的研究表明: 反应是按缩合及对称化两步机理进行的。(R=Et,M=Mo)属三斜晶系, 空间群P-1。a=0.6333(1), b=0.7712(1), c=1.4204(4)nm; a=77.31(1),β=74.51(2), γ=68.72(1)^°; V=0.61714nm^3;Z=1;D~x=2.246g/cm^3;R=0.044。

关键词: 晶体结构测定, 缩合反应, 反应机理, 形成, 分子结构, 汞络合物, 环戊二烯 P, 钼络合物, 对称, 钠盐

Metal-metal bond formation took place between h5-RO2CC5H4(CO)3MNa and R1HgCl (R1:Me, Et, Ph) to give [RO2CC5H4(CO)3M]2Hg (I, R = Me, Et; M = Cr, Mo, W), unexpectedly. The study on an intermediate h5-EtO2CC5H4(CO)3MoHgPh showed that this unexpected reaction proceeded via two steps: condensation and symmetrization. I (R = Et, M = Mo) belongs to triclinic space group P-1.

Key words: CRYSTAL STRUCTURE DETERMINATION, CONDENSATION REACTION, REACTION MECHANISM, FORMATION, MOLECULAR STRUCTURE, MERCURY COMPLEX, CYCLOPENTADIENE P, MOLYBDENUM COMPLEX, SYMMETRY, SODIUM SALT

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